1 /*********************************************************************** 2 * * 3 * This software is part of the ast package * 4 * Copyright (c) 1985-2010 AT&T Intellectual Property * 5 * and is licensed under the * 6 * Common Public License, Version 1.0 * 7 * by AT&T Intellectual Property * 8 * * 9 * A copy of the License is available at * 10 * http://www.opensource.org/licenses/cpl1.0.txt * 11 * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 12 * * 13 * Information and Software Systems Research * 14 * AT&T Research * 15 * Florham Park NJ * 16 * * 17 * Glenn Fowler <gsf@research.att.com> * 18 * David Korn <dgk@research.att.com> * 19 * Phong Vo <kpv@research.att.com> * 20 * * 21 ***********************************************************************/ 22 #pragma prototyped 23 /* 24 * Glenn Fowler 25 * AT&T Research 26 * 27 * return scaled number n 28 * string width is 5 chars or less 29 * if m>1 then n divided by m before scaling 30 */ 31 32 #include <ast.h> 33 34 char* 35 fmtnum(register unsigned long n, int m) 36 { 37 register int i; 38 register unsigned long r; 39 char* buf; 40 int z; 41 42 char suf[2]; 43 44 if (m > 1) 45 { 46 r = n; 47 n /= m; 48 r -= n; 49 } 50 else 51 r = 0; 52 suf[1] = 0; 53 if (n < 1024) 54 suf[0] = 0; 55 else if (n < 1024 * 1024) 56 { 57 suf[0] = 'k'; 58 r = ((n % 1024) * 100) / 1024; 59 n /= 1024; 60 } 61 else if (n < 1024 * 1024 * 1024) 62 { 63 suf[0] = 'm'; 64 r = ((n % (1024 * 1024)) * 100) / (1024 * 1024); 65 n /= 1024 * 1024; 66 } 67 else 68 { 69 suf[0] = 'g'; 70 r = ((n % (1024 * 1024 * 1024)) * 100) / (1024 * 1024 * 1024); 71 n /= 1024 * 1024 * 1024; 72 } 73 if (r) 74 { 75 if (n >= 100) 76 r = 0; 77 else if (n >= 10) 78 { 79 i = 1; 80 if (r >= 10) 81 r /= 10; 82 } 83 else 84 i = 2; 85 } 86 buf = fmtbuf(z = 8); 87 if (r) 88 sfsprintf(buf, z, "%lu.%0*lu%s", n, i, r, suf); 89 else 90 sfsprintf(buf, z, "%lu%s", n, suf); 91 return buf; 92 } 93